Removed ahash dependency, because this workaround doesn't work for Extism which doesnt have the JS environment in the host.
HTML parsing and querying with CSS selectors.
scraper is on Crates.io and GitHub.
Scraper provides an interface to Servo's html5ever and selectors crates, for browser-grade parsing and querying.
use scraper::Html;
let html = r#"
<!DOCTYPE html>
<meta charset="utf-8">
<title>Hello, world!</title>
<h1 class="foo">Hello, <i>world!</i></h1>
"#;
let document = Html::parse_document(html);use scraper::Html;
let fragment = Html::parse_fragment("<h1>Hello, <i>world!</i></h1>");use scraper::Selector;
let selector = Selector::parse("h1.foo").unwrap();use scraper::{Html, Selector};
let html = r#"
<ul>
<li>Foo</li>
<li>Bar</li>
<li>Baz</li>
</ul>
"#;
let fragment = Html::parse_fragment(html);
let selector = Selector::parse("li").unwrap();
for element in fragment.select(&selector) {
assert_eq!("li", element.value().name());
}use scraper::{Html, Selector};
let html = r#"
<ul>
<li>Foo</li>
<li>Bar</li>
<li>Baz</li>
</ul>
"#;
let fragment = Html::parse_fragment(html);
let ul_selector = Selector::parse("ul").unwrap();
let li_selector = Selector::parse("li").unwrap();
let ul = fragment.select(&ul_selector).next().unwrap();
for element in ul.select(&li_selector) {
assert_eq!("li", element.value().name());
}use scraper::{Html, Selector};
let fragment = Html::parse_fragment(r#"<input name="foo" value="bar">"#);
let selector = Selector::parse(r#"input[name="foo"]"#).unwrap();
let input = fragment.select(&selector).next().unwrap();
assert_eq!(Some("bar"), input.value().attr("value"));use scraper::{Html, Selector};
let fragment = Html::parse_fragment("<h1>Hello, <i>world!</i></h1>");
let selector = Selector::parse("h1").unwrap();
let h1 = fragment.select(&selector).next().unwrap();
assert_eq!("<h1>Hello, <i>world!</i></h1>", h1.html());
assert_eq!("Hello, <i>world!</i>", h1.inner_html());use scraper::{Html, Selector};
let fragment = Html::parse_fragment("<h1>Hello, <i>world!</i></h1>");
let selector = Selector::parse("h1").unwrap();
let h1 = fragment.select(&selector).next().unwrap();
let text = h1.text().collect::<Vec<_>>();
assert_eq!(vec!["Hello, ", "world!"], text);use html5ever::tree_builder::TreeSink;
use scraper::{Html, Selector};
let html = "<html><body>hello<p class=\"hello\">REMOVE ME</p></body></html>";
let selector = Selector::parse(".hello").unwrap();
let mut document = Html::parse_document(html);
let node_ids: Vec<_> = document.select(&selector).map(|x| x.id()).collect();
for id in node_ids {
document.remove_from_parent(&id);
}
assert_eq!(document.html(), "<html><head></head><body>hello</body></html>");Please feel free to open pull requests. If you're planning on implementing something big (i.e. not fixing a typo, a small bug fix, minor refactor, etc) then please open an issue first.